[PATCH 41/47] staging: ks7010: use CIRC_CNT_TO_END macro in cnt_smeqbody

Sergio Paracuellos sergio.paracuellos at gmail.com
Mon Apr 30 13:44:26 UTC 2018


This commit changes custom implementation of CIRC_CNT_TO_END.
Just use the linux kernel header one to simplify code.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos at gmail.com>
---
 drivers/staging/ks7010/ks_hostif.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/ks7010/ks_hostif.c b/drivers/staging/ks7010/ks_hostif.c
index 359187e..7a51123 100644
--- a/drivers/staging/ks7010/ks_hostif.c
+++ b/drivers/staging/ks7010/ks_hostif.c
@@ -6,6 +6,7 @@
  *   Copyright (C) 2009 Renesas Technology Corp.
  */
 
+#include <linux/circ_buf.h>
 #include <linux/if_arp.h>
 #include <net/iw_handler.h>
 #include <uapi/linux/llc.h>
@@ -26,9 +27,8 @@ static inline void inc_smeqtail(struct ks_wlan_private *priv)
 
 static inline unsigned int cnt_smeqbody(struct ks_wlan_private *priv)
 {
-	unsigned int sme_cnt = priv->sme_i.qtail - priv->sme_i.qhead;
-
-	return (sme_cnt + SME_EVENT_BUFF_SIZE) % SME_EVENT_BUFF_SIZE;
+	return CIRC_CNT_TO_END(priv->sme_i.qhead, priv->sme_i.qtail,
+			       SME_EVENT_BUFF_SIZE);
 }
 
 static inline u8 get_byte(struct ks_wlan_private *priv)
-- 
2.7.4



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